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Contemporary art continues to expand its definition, blurring the boundaries between functional objects and fine art. This practice-based research explores the potential of recycled materials in visual art creation, using a tricycle as the primary medium. Using a mixed-media approach, primarily utilizing recycled metal and plate, along with recycled components such as drills and old water pumps, this project aims to transform the tricycle from a mobility object into a work of fine art. This concept intentionally blurs functional aesthetics, emphasizing freedom of expression and uniqueness of form, and reflecting a dialogue between the past and the present through recycled materials. Through a case study of the work "The Bully," this paper explores how a writer's personal trauma can be sublimated into a powerful artistic expression, forming a visual narrative of power, intimidation, and artistic revenge. This research also adopts an Artistic Research methodology to examine the creative process holistically.

Antibiotic resistance (AR) has emerged as a critical global public health concern, particularly due to the spread of antibiotic-resistant bacteria (ARB) and their genes in natural environments. The oceans, which host diverse ecosystems and serve as major food sources, are increasingly affected by ARB pollution, originating from human, agricultural, and industrial activities. Simultaneously, climate change (CC) exacerbates the situation by raising ocean temperatures, lowering pH, and altering marine biodiversity—creating optimal conditions for bacterial survival and gene transfer. This review explores the interconnectedness between ocean pollution and CC and how both factors influence the distribution and persistence of ARB and antibiotic resistance genes (ARGs) in marine ecosystems. Through a systematic literature review of 174 peer-reviewed articles, the study highlights how anthropogenic pollutants—especially antibiotics, heavy metals, and plastics—contribute to resistance emergence. Furthermore, it discusses the transmission pathways from pollution hotspots (e.g., hospitals, agriculture, wastewater) to the oceans. The One Health (OH) strategy is presented as a comprehensive solution to address the environmental, human, and animal health risks posed by antibiotic pollution. This paper serves as a basis for future research into surveillance, mitigation, and policy interventions for controlling AR in marine environments.

The welding process is a crucial element in the fabrication and manufacturing industries, serving to join two or more components into a single unit. The quality of the weld is very important, but defects such as undercut, underfill, and spatter are often still found. This study aims to analyse welding defects caused by voltage variations and differences in welding wire on T-joint fillet welds using the Gas Metal Arc Welding (GMAW) method on 8 mm thick plates. The voltage variations used were 20.6 V, 23.7 V, and 27.9 V, with welding wires EN ISO 14341-A: G 42 4 M21 3Sil and EN ISO 14341-A: G 46 4 M21 Z 3Ni1Cu. The research method used visual inspection and penetrant testing to identify types of welding defects. The research results showed four types of welding defects from visual inspection: spatter, undercut, weld deposit thickness, and excessive throat thickness, and two from penetrant testing: undercut and end creater pipe. Based on the two tests conducted in this study, it can be concluded that the optimal welding results were achieved at a voltage variation of 23.7 V using the EN ISO 14341-A: G 46 4 M21 Z 3Ni1Cu, as it had the fewest welding defects. The worst welding results were obtained at a voltage variation of 20.6 V using both types of welding wire, as this welding process resulted in numerous welding defects in both visual and penetrant testing. This study provides insights that proper welding parameter settings significantly influence the quality of the welded joint.

This study discusses the impact of plastic waste imports from the Netherlands on environmental security in Indonesia. The practice of cross-border waste trade has become a sensitive issue in international relations, especially when developing countries such as Indonesia receive an abundance of waste from developed countries. This study uses a descriptive qualitative approach with data collection techniques through documentation and literature studies. The analysis focuses on regulations, dynamics of the recycling industry, and the ecological impact of incoming waste. The results show that most of the imported plastic waste cannot be processed safely and contains hazardous contaminants such as microplastics and heavy metals. This waste pollutes the soil, rivers, and seas, and enters the food chain through marine fish consumed by the community, thus threatening food security and public health. The state's response, although it has included re-export steps and policy revisions, is still weak in terms of supervision and law enforcement. In conclusion, plastic waste imports are a form of non-traditional threat to Indonesia's environmental security that requires stronger structural, diplomatic, and institutional responses.

Machine translation (MT), especially neural machine translation (NMT) technology, has made significant progress in producing more natural and fluent translations. However, this technology still faces major challenges related to cultural sensitivity, where idiomatic, philosophical, and social contextual meanings often fail to be captured accurately. Through a qualitative literature review, this article examines the main challenges faced by machine translation in understanding and reproducing cultural nuances. The analysis shows that NMT systems have limitations in translating philosophical terms and idioms, tend to be biased due to the dominance of English-language data, and ignore the metalinguistic awareness of humans. Failure to capture these cultural dimensions not only risks losing the authentic meaning of the message but can also accelerate the loss of local languages. This study concludes that the role of humans remains irreplaceable in translating highly cultural texts. Therefore, a hybrid approach that combines technology with human intervention ( human-in-the-loop ) and the development of models trained with more culturally diverse data is recommended to produce inclusive and ethical translations.  

This study examines the causes and impacts of hazardous and toxic waste (B3) spills in Bekasi Regency, West Java. B3 waste such as used oil, batteries, and heavy metals can pollute the environment and harm public health. Key causes include lack of treatment facilities, violations of disposal procedures, and weather factors like flooding. The research uses normative legal approaches. The findings of this study underscore the necessity of managing hazardous waste in compliance with established regulations, enforcing environmental laws rigorously, and ensuring active involvement from both government institutions and the public in monitoring efforts. The application of the strict liability principle is considered highly important in providing a deterrent effect against polluters through legal accountability.

This study aims to describe the implementation of Shielded Metal Arc Welding (SMAW) techniques in practical training conducted by cadets of the Teknika Study Program at AMN Cilacap. The method employed is descriptive quantitative using a Likert-scale questionnaire (1–5). The research sample consisted of 40 second-semester cadets selected through purposive sampling. The questionnaire was structured based on four aspects: theoretical understanding, practical skills, compliance with safety procedures, and perceived obstacles. The results show that theoretical understanding was at a high level (average score of 4.1; 87.5%), practical skills were categorized as adequate (75%), and compliance with safety procedures was very high (90%). However, obstacles were still significantly perceived, with an average score of 2.88 and only 27.5% of respondents giving positive responses. The main obstacles faced by cadets included limited welding equipment, insufficient training in specific welding positions, and inadequate practice time. This study recommends improvements in practical facilities, diversification of training in various welding positions, and more effective management of practice schedules to support optimal learning outcomes.

The rapid advancement of technology today encourages every human being in matters related to the field of industrial or machinery needs, which has a function as a power transfer from the driving force (diesel engine or electric motor dynamo) to the engine to be driven, Gearbox is a component of a machineconsisting of a house for gears, In one of the uses of machine construction and in some components often involves professional welding techniques, one of which is welding using electric arc / Shielded Metal Arc Welding (SMAW), the selection of appropriate welding current parameters affects the strength and changes in the mechanical properties of a metal. The current used is too low will cause the difficulty of igniting the electric arc, and the electric arc that occurs is unstable, this test wants to examine using high carbon steel, namely JIS S45C STEEL (ASTM 1045) in the application for gears on the Gearbox through SMAW weldingusing electrodes (E11018-G) Ø3.2 mm with current variations of 90 A, 100 A and 110 A, and see its mechanical properties of NDT testing, tensile testing, and impact testing (charpy). The NDT test results obtained no indication of cracks in the variations of 90, A, 100 A and 110 A and the porosity indication only occurredin the variation of 100 A, in the Tensile test test obtained good results in the current variation of 90 A and the less good occurred in the variation of 100 A. In the Im test test, the results of the NDT test were obtained.

The subject of Metal Welding Technology is one of the compulsory subjects in the Fabrication major. However, many students' learning outcomes remain below the assessment criteria. This is suspected to be due to the use of conventional or less varied teaching methods, which result in limited student understanding and practical skills. Therefore, the researcher applied the Project-Based Learning (PjBL) model in this study, which aimed to determine its effect on students' comprehension. The type of research used was a quasi-experimental design with a post-test only control group, involving two classes: an experimental class and a control class. The study involved 16 students in each class. Data were collected through a test. Based on the data obtained, there was a difference between the experimental and control classes. This was proven by the average post-test scores of the experimental class, which was 80.62, compared to the control class, which was 65. These results indicate that the experimental class scored higher than the control class. The final data analysis included tests for normality, homogeneity, and hypothesis testing using a t-test. The results showed a significant (2-tailed) value of 0.001 for the comprehension group, which is less than 0.05. This means that the use of the Project-Based Learning model had a significant effect on students’ understanding and can be classified as effective, as it improved their comprehension.

This study explores the phenomenon of code-switching as portrayed in the Susah Sinyal movie. Code-switching is the practice of alternating between two or more languages within a single conversation, commonly done by bilingual individuals for different social and communicative reasons. The objective of this research is to examine the types of code-switching using the framework of Romaine (1989) and to describe its communicative functions based on the theory of Appel and Muysken (2006). The data were obtained from the movie using documentation techniques and analyzed using a descriptive qualitative method. The analysis revealed three types of code-switching, namely intra-sentential, inter-sentential, and tag-switching. Additionally, the study identified six functions of code-switching: referential, directive, expressive, phatic, metalinguistic, and poetic. Overall, the use of code-switching in Susah Sinyal movie demonstrates how the characters strategically shift between languages to clarify meaning, convey feelings, direct actions, maintain social bonds, reflect identity, and enhance expression, reflecting the dynamic nature of bilingual communication in Indonesian popular media.

Mercury is a highly toxic and bioaccumulative heavy metal. Despite its prohibition, mercury is still frequently found as a contaminant in cosmetic products, particularly in whitening products. This article aims to review and present various findings from previous studies on mercury levels in cosmetic preparations marketed in Indonesia, analyzed using the Atomic Absorption Spectrophotometry (AAS). The method employed is a literature review of scientific articles published between 2015 and 2025, selected based on their focus on mercury analysis in cosmetics use of the AAS method. The review results show that the majority of whitening creams and lotions contain mercury levels exceeding the safety limits set by the Indonesian National Agency of Drug and Food Control (BPOM RI), with some samples showing extremely high concentrations reaching thousands of ppm. In contrast, other preparations such as powders, hair dyes, and deodorants generally have low or undetectable mercury levels. These findings indicate a lack of understanding regarding mercury and its dangers, especially regarding compliance with regulations on cosmetic products, especially those sold online. The conclusion of this review emphasizes the need for enhanced regulatory enforcement, stricter supervision, and increased public education to protect consumers from the health risks posed by mercury-containing cosmetics.

Coal is an organic mineral from ancient plant remains that settles and goes through physical or chemical processes over a period of up to millions of years. Coal is used as a source of steam-powered electrical energy through combustion which produces fly ash waste. fly ash contains various chemical materials such as SiO2; Al2O3; Fe2O3. The potential chemical content makes fly ash which can be used as an adsorbent for heavy metals and dyes by forming silica xerogel. To increase the silica oxide content in fly ash, a washing process is carried out with various solvents. Research on the adsorption of methylene blue dye using silica xerogel from fly ash with variations in contact time. The results showed that silica xerogel from fly ash was able to adsorb methylene blue dye at a contact time of 90 minutes. Adsorption kinetics follows a pseudo second order model with an R2 value that is better than pseudo first order. It can be seen that the R2 value respectively shows a linear regression of 0.703 for pseudo first order and 1 for pseudo second order.

The use of Cr (Chromium) in industry and daily life produces toxic waste harmful to humans and the environment. This study aims to evaluate the effectiveness of activated carbon from corn cobs as an adsorbent for Cr(VI) heavy metal. Corn cobs, which contain 40–44% cellulose, were carbonized at 500°C using 6% sodium carbonate and characterized with an IR spectrophotometer. Adsorption tests were conducted by varying pH and contact time to determine optimal conditions. FTIR results revealed functional groups such as C≡C stretch, C=C=C stretch, and C–O bend. After activation, O–H groups appeared, indicating the presence of aromatic compounds, which are typical in activated carbon. The optimum pH for Cr(VI) adsorption was pH 4, with an adsorption rate of 65.35%. The optimum contact time was 60 minutes, resulting in 3.2% Cr(VI) adsorbed and a maximum adsorption capacity of 0.089 mg/g. In conclusion, corn cobs are a promising, eco-friendly, and effective natural material for adsorbing Cr(VI) heavy metal ions.

Clean living behavior can be done by maintaining the sustainability of life can be done by reducing waste, saving energy, planting trees, and not littering. Waste sorting can be done by separating organic and inorganic waste into different trash bins. In addition, inorganic waste can also be separated again based on its type, such as plastic, paper, glass, and metal. Facilitates the process of collecting and processing waste for recycling. The Principles of Clean and Healthy Living Behavior (PHBS) recommend the use of waste sorting methods. The daily habits that we do to maintain personal and environmental cleanliness consist of this behavior. . Along with the emergence of various diseases that often attack children aged 6-12 years, PHBS in schools is a collection of behaviors carried out by students, teachers, and school residents based on learning so that they are able to independently prevent disease, improve their health. Implementation of better waste sorting practices can reduce the negative impact of waste on the environment, increase the efficiency of waste management, and provide long-term benefits for school residents. Schools are one of the places that have great potential to educate students about good waste management. SD Negeri 2 Kelusa has problems related to the lack of student knowledge about waste sorting and utilization, especially organic waste. Most students at SD Negeri 2 Kelusa still have limited understanding of the types of waste and how to process it. Most students do not realize and understand that organic waste can be reused, so they tend to throw it away with other waste.

The manufacturing industry continues to develop quality to improve productivity and business sustainability. One method commonly used in metal surface treatment is the anodizing process. One of these industries is the electroplating industry which uses chemicals as aluminum dyes that damage the environment. The purpose of this study is to determine the effect of using natural dyes turmeric, dragon fruit, and pandan leaves as coloring materials in the anodizing process of bicycle components on their hardness. The specimen used in this study is 1100 aluminum. The results showed that the highest hardness value using dragon fruit natural dye was 204.775 VHN.

The modulation of the structures and electronic properties of transition metal complexes by multi-ligands coordination has been widely exploited to enhance the catalytic efficiency in organic transformations. Here, we present synthesis, characterization, and catalytic performance of Cu(II), Ni(II) and Pd(II) complexes of multidentate ligands- EDTA, 1,10-phenanthroline and N-heterocyclic carbenes (NHCs). The Pd-NHC complex displayed the high catalytic activity for hydrogenation as well as small-molecule activation, up to 450 h⁻¹ of turnover frequency (TOF) and total conversion of styrene to ethylbenzene at room temperature, and is higher efficient than Cu-EDTA (TOF =120 h⁻¹), Ni-Phen (TOF= 85 h⁻¹). The DFT calculation with Pd-NHC system showed that the small HOMO-LUMO gap (3.2 eV) and the short Pd–C bond (1.95 Å) of Pd-NHC, which could facilitate the transfer of the growth species, contributed to the low energy of activation (28 kJ/mol). Mathematical model also discussed its high catalytic activity (TOF/Ea = 16.07 h⁻¹·kJ⁻¹·mol) due to the strong σ-donor ligands and proper geometry. These findings underscore the influence of ligand architecture to secure transition states and modulate electron density in designing efficient sustainable catalysis that is industrially relevant.

One of the impacts of the growth of activities in the transportation sector is the disposal of rubber tire waste. The increasing number of motorized vehicles in society has caused an increase in tire waste. Especially in developing countries, the use of plastic bottles has become an inevitable and unavoidable necessity for society. Inadequate waste management and handling causes negative impacts on the environment, such as hazards to human health, to animal life, soil, water, and air pollution. The purpose of this study was to reduce environmental pollution by testing the compressive strength of concrete made with a mixture of waste. Experiments were conducted in the laboratory with concrete cylinder test objects with a diameter of 150 mm and a height of 300 mm. The proportion of waste mixture, Polyethylene Terephthalate (PET), Rubber Powder, Waste Metalized Film Food Packaging (WMFFP) to fine aggregate was 0%, 5%, and 10%, each variation. The test results showed a compressive strength of 17.62 MPa, 15.29 MPa, and 14.83 MPa at the percentage of waste mixture. From this data, it can be concluded that waste materials can be used as a substitute for sand in concrete.

This research explores the strategic positioning of Pegadaian UPC Ajibarang’s products using the Boston Consulting Group (BCG) matrix as a tool for evaluating market performance and future potential. Pegadaian plays a crucial role as a microfinance institution by offering accessible financial solutions such as gold/jewelry pawning, gold savings (digital and physical), installment-based precious metal purchases, electronic pledging, KUR based on vehicle ownership documents, and Hajj savings plans. The study employs a qualitative descriptive approach, gathering insights from comprehensive interviews with both employees and customers. Findings indicate that each product faces unique obstacles and opportunities. Key challenges include customer dissatisfaction regarding service quality, limited adoption of cashless transactions by elderly clients, and traditional promotional methods relying on brochures and word-of-mouth. By mapping products based on market share and growth prospects through the BCG matrix, the study identifies which offerings should be prioritized for development, stability, or rebranding. In response, it is recommended that Pegadaian UPC Ajibarang enhance its marketing and customer service strategies, broaden digital engagement efforts, and introduce user-friendly technological solutions for older clientele. These steps are essential to strengthen competitiveness and ensure long-term sustainable growth for their most promising financial products.

Worldwide trade is conducted 80% through maritime routes, including the export and import of coal. Coal is a non-renewable energy source, often used as fuel for power plants. As technology advances, detecting metal contaminants in coal cargo becomes crucial to prevent contamination of coal with metal materials. This study aims to (1) understand the operation of a conveyor in transporting coal, and (2) assess how the Proximity inductive sensor detects metal presence. The methods used in this research include real data analysis and literature review, conducted aboard the ship. The researcher designed and developed a prototype system for this purpose. The Proximity inductive sensor is utilized to detect metal contaminants, such as aluminum, iron, and stainless steel, among the coal cargo. The research was carried out during sea practice (prola) aboard the WHS ISKANDAR 1. The findings indicate that the conveyor is driven by a DC motor, and the Proximity inductive sensor effectively detects metals to separate them from the coal cargo, thus purifying the coal from metal contaminants.

Wall Decorations from Ice Cream Sticks (HIDING) are a craft innovation in the decorative wall art industry. As we know, wall decorations are widely used to enhance aesthetics, beautify, and create a pleasant atmosphere in homes. They are commonly displayed in bedrooms, living rooms, dining areas (kitchens), and are also often found in workspaces, meeting rooms, art galleries, and cafés. The innovation of creating wall decorations from ice cream sticks aims to develop creative works from recycled materials, turning them into products that are equally attractive compared to those made from wood, plastic, or metal. These products offer aesthetic, artistic, and creative value that can attract public interest.The methods used in this program include lectures, discussions, and hands-on training. The results of the activity include: (1) The HIDING training was well received by the participants; (2) The high interest and motivation of the participants supported effective knowledge and skills transfer from facilitators to trainees, ensuring full absorption of the materials; and (3) The HIDING products have the potential to be developed into entrepreneurial products.